Piston for pneumatic automotive lifting device



FIG. 1 is a perspective view of a piston for pneumatic automotive lifting device showing my new design;

FIG. 2 is a front side elevation view of FIG. 1, the elevation view from the right, left, and rear being identical;

FIG. 3 is a top plan view of FIG. 1;

FIG. 4 is a bottom plan view of FIG. 1; and,

FIG. 5 is a perspective cross sectional view taken along the lines 5-5 in FIG. 1. 

CLAIM The ornamental design for a piston for pneumatic automotive lifting device, as shown and described. 